{"title":"使用不同研磨剂增强合成的 C4A0.81F1.19 的水化反应","authors":"Hyunuk Kang, Yangwoo Lee, Sungjin Jung, Juhyuk Moon","doi":"10.1617/s11527-024-02476-x","DOIUrl":null,"url":null,"abstract":"<div><p>Tetracalcium aluminoferrite (C<sub>4</sub>AF) presents in ordinary Portland cement (OPC) as a solid solution phase, as C<sub>4</sub>A<sub><i>x</i></sub>F<sub>2−<i>x</i></sub> (0.7 ≤ <i>x</i> ≤ 1.1). There is a limited understanding of the hydration reactions of C<sub>4</sub>AF, particularly regarding the influence of alkanolamines (AA) on C<sub>4</sub>AF, which can substantially alter OPC hydration. In this study, synthesized C<sub>4</sub>A<sub>0.81</sub>F<sub>1.19</sub> was subjected to grinding, using three different AA (triisopropanolamine, ethanol diisopropanolamine, and diethanol isopropanolamine) at dosages of 0, 0.1, and 0.3%. It was experimentally confirmed that the crystal structure of unhydrated C<sub>4</sub>AF was partially changed during the grinding process, and the hydration properties of C<sub>4</sub>AF were modified. From these results, the compressive strength improved significantly, and the rate of strength enhancement was the highest with 0.1% of diethanol isopropanolamine. More specifically, it was revealed that both Fe and Al sources were proficiently activated, leading to the production of Al/Fe-containing AFm phases and efficiently enhanced mechanical properties.</p></div>","PeriodicalId":691,"journal":{"name":"Materials and Structures","volume":"57 9","pages":""},"PeriodicalIF":3.4000,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1617/s11527-024-02476-x.pdf","citationCount":"0","resultStr":"{\"title\":\"Enhanced hydration reaction of synthesized C4A0.81F1.19 with the use of different grinding agents\",\"authors\":\"Hyunuk Kang, Yangwoo Lee, Sungjin Jung, Juhyuk Moon\",\"doi\":\"10.1617/s11527-024-02476-x\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Tetracalcium aluminoferrite (C<sub>4</sub>AF) presents in ordinary Portland cement (OPC) as a solid solution phase, as C<sub>4</sub>A<sub><i>x</i></sub>F<sub>2−<i>x</i></sub> (0.7 ≤ <i>x</i> ≤ 1.1). There is a limited understanding of the hydration reactions of C<sub>4</sub>AF, particularly regarding the influence of alkanolamines (AA) on C<sub>4</sub>AF, which can substantially alter OPC hydration. In this study, synthesized C<sub>4</sub>A<sub>0.81</sub>F<sub>1.19</sub> was subjected to grinding, using three different AA (triisopropanolamine, ethanol diisopropanolamine, and diethanol isopropanolamine) at dosages of 0, 0.1, and 0.3%. It was experimentally confirmed that the crystal structure of unhydrated C<sub>4</sub>AF was partially changed during the grinding process, and the hydration properties of C<sub>4</sub>AF were modified. From these results, the compressive strength improved significantly, and the rate of strength enhancement was the highest with 0.1% of diethanol isopropanolamine. More specifically, it was revealed that both Fe and Al sources were proficiently activated, leading to the production of Al/Fe-containing AFm phases and efficiently enhanced mechanical properties.</p></div>\",\"PeriodicalId\":691,\"journal\":{\"name\":\"Materials and Structures\",\"volume\":\"57 9\",\"pages\":\"\"},\"PeriodicalIF\":3.4000,\"publicationDate\":\"2024-10-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://link.springer.com/content/pdf/10.1617/s11527-024-02476-x.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Materials and Structures\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1617/s11527-024-02476-x\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CONSTRUCTION & BUILDING TECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials and Structures","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1617/s11527-024-02476-x","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CONSTRUCTION & BUILDING TECHNOLOGY","Score":null,"Total":0}
Enhanced hydration reaction of synthesized C4A0.81F1.19 with the use of different grinding agents
Tetracalcium aluminoferrite (C4AF) presents in ordinary Portland cement (OPC) as a solid solution phase, as C4AxF2−x (0.7 ≤ x ≤ 1.1). There is a limited understanding of the hydration reactions of C4AF, particularly regarding the influence of alkanolamines (AA) on C4AF, which can substantially alter OPC hydration. In this study, synthesized C4A0.81F1.19 was subjected to grinding, using three different AA (triisopropanolamine, ethanol diisopropanolamine, and diethanol isopropanolamine) at dosages of 0, 0.1, and 0.3%. It was experimentally confirmed that the crystal structure of unhydrated C4AF was partially changed during the grinding process, and the hydration properties of C4AF were modified. From these results, the compressive strength improved significantly, and the rate of strength enhancement was the highest with 0.1% of diethanol isopropanolamine. More specifically, it was revealed that both Fe and Al sources were proficiently activated, leading to the production of Al/Fe-containing AFm phases and efficiently enhanced mechanical properties.
期刊介绍：
Materials and Structures, the flagship publication of the International Union of Laboratories and Experts in Construction Materials, Systems and Structures (RILEM), provides a unique international and interdisciplinary forum for new research findings on the performance of construction materials. A leader in cutting-edge research, the journal is dedicated to the publication of high quality papers examining the fundamental properties of building materials, their characterization and processing techniques, modeling, standardization of test methods, and the application of research results in building and civil engineering. Materials and Structures also publishes comprehensive reports prepared by the RILEM’s technical committees.
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